Deactivation timer management in a wireless device and wireless network

A wireless device comprising:

• one or more processors;
• memory storing instructions that, when executed by the one or more processors, cause the wireless device to:
• receive at least one radio resource control (RRC) message comprising configuration parameters of a plurality of cells, the configuration parameters comprising a deactivation timer value for a deactivation timer of a secondary cell of the plurality of cells;
• receive a media access control (MAC) control element (CE) indicating activation of the secondary cell;
• start the deactivation timer of the secondary cell in response to receiving the MAC CE;
• receive a first downlink control information (DCI) comprising:
• a first filed indicating an uplink resource block assignment;
• and
• a first trigger field indicating that the first DCI is triggered in response to a second trigger of a second DCI;
• restart the deactivation timer of the secondary cell in response to the receiving first DCI;
• receive, via a common search space of a control channel, the second DCI comprising:
• a second trigger field indicating the second trigger;
• and
• a second field indicating a subframe offset value;
• restart the deactivation timer of the secondary cell in response to receiving the second DCI;
• and
• transmit, in response to the second trigger, one or more transport blocks via uplink resource block assignment of a subframe, wherein a position of the subframe is determined based on the subframe offset value.

A method comprising;

• transmitting, by a base station, at least one radio resource control (RRC) message comprising configuration parameters of a plurality of cells, the configuration parameters comprising a deactivation timer value for a deactivation timer of a secondary cell of the plurality of cells;
• transmitting a media access control (MAC) control element (CE) indicating activation of the secondary cell;
• starting the deactivation timer of the secondary cell in response to transmitting the MAC CE;
• transmitting a first downlink control information (DCI) comprising:
• a first filed indicating an uplink resource block assignment;
• and
• a first trigger field indicating that the first DCI is triggered in response to a second trigger of a second DCI;
• restarting the deactivation timer of the secondary cell in response to transmitting the first DCI;
• transmitting, via a common search space of a control channel, the second DCI comprising:
• a second trigger field indicating the second trigger;
• and
• a second field indicating a subframe offset value;
• restarting the deactivation timer of the secondary cell in response to transmitting the second DCI;
• and
• receiving, one or more transport blocks via uplink resource block assignment of a subframe, wherein a position of the subframe is determined based on the subframe offset value.